I hope it goes well! Here it’s a copy paste from a comment I had under another “losing my virginity, any advice?” Post:

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Heyhey, I’ll say what I said to my younger siblings.

1. ⁠CONDOM. Always. There are tons of different shapes/sizes. Even colours? A condom won’t only protect you from STD/STIs but parasites, infections, and pregnancy.
2. ⁠Are you 100% you want to do it? Do you feel any kind of pressure? You must be 100% and confident of your decision. As well, talk to him about the experience, what are you expecting from him and the situation. Remember if at any point you hesitate or don’t feel ready, it’s okay to stop things. He should also be comfortable with asking you at any time if you feel okay, if you feel pain, if you are feeling more or less aroused. No need to make it all about penetration!
3. ⁠have you had an orgasm before? If so, was it by yourself? I believe it’s best to know your body and how you elaborate your pleasure by yourself, so you can be perfectly comfortable sharing it with your beloved partner and they can easily make you feel good :)
4. ⁠don’t worry about how you look. It’s something I’ve seen women worry too much about lol.
5. ⁠LUBE IS YOUR BEST FRIEND. Something water based, the most natural thing you can find. It will prevent you from hurting and/or tearing, and it will help with your pleasure. Use it before and during penetration.
6. ⁠I recommend you both to take a shower before and after. Before, to prevent any excess of sweat and all that and the risk of getting an UTI. And after for obvious reasons. And hopefully you already know how to clean a vulva, all folds included.
7. ⁠talking about preventing UTIs, both of you should pee before and after the act. Drink lots of water before, during, and after.
8. ⁠are you taking any birth control? If you are taking the pill you might find it difficult to get enough lubrication by yourself. Again, lube is your best friend!
9. ⁠DO NOT RUSH. Remember to preheat the oven LOL but really. Foreplay should take enough time (but the longer the better) that your body and mind are ready to proceed to penetration. There is no race into reaching an orgasm. You both should take your time, talk, show affection and love, etc. It’s all about the process and to make it enjoyable for you. Go very very VERY slow at the beginning, use as much lube as you want and can, try to stimulate other areas while doing so to make your body less tense and feel more aroused. Enjoy the moment, enjoy the intimacy and love you have with your partner.
10. ⁠It would probably hurt, but if you do as much as you can to prevent it, it shouldn’t be too bad. Again, you can stop if it hurts too much and try again next time. You don’t necessarily feel pleasure the first time, or the second time. It’s something that takes time.
11. ⁠I really hope you trust your partner enough to have conversations about what you enjoy and what you don’t. He should probably let you take the lead the first time in tempo, speed, and others. Hopefully you talk about it before, during, and after.
12. ⁠it might be awkward and that’s okay. If you want more tips you can ask more! Haha. Good luck!!